<template>
    <div class="app-container">
      <h2 style="text-align: center;">发布新课程</h2>
      <el-steps :active="3" process-status="wait" align-center style="margin-bottom: 40px;">
        <el-step title="填写课程基本信息"/>
        <el-step title="创建课程大纲"/>
        <el-step title="提交审核"/>
      </el-steps>
      <div class="ccInfo">
        <img :src="coursePublish.cover">
        <div class="main">
          <h2>{{ coursePublish.title }}</h2>
          <p class="gray"><span>共{{ coursePublish.lessonNum }}课时</span></p>
          <p><span>所属分类：{{ coursePublish.oneLevel }} — {{ coursePublish.twoLevel }}</span></p>
          <p>课程讲师：{{ coursePublish.teacherName }}</p>
          <h3 class="red">￥{{ coursePublish.price }}</h3>
        </div>
      </div>
      <div>
        <el-button @click="previous">返回修改</el-button>
        <el-button :disabled="saveBtnDisabled" type="primary" @click="publshCourse">发布课程</el-button>
      </div>
    </div>
</template>

<script>
    import course from '@/api/course'
    export default {
        data() {
            return {
                saveBtnDisabled: false,
                coursePublish:{}
            }
        },
        created() {
            this.getAllCourseInfo()
        },
        methods: {
            previous() {
                this.$router.push({path:'/edu/course/chapter/'+ this.$route.params.id})
            },
            getAllCourseInfo() {
                course.getAllCourseInfo(this.$route.params.id)
                    .then(response => {
                        if (response.data.success) {
                            this.coursePublish = response.data.data.courseInfo
                        }
                    })
                    .catch(response => {

                    })
            },
            publshCourse() {
                this.$confirm('是否确定发布该课程?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    return course.publshCourse(this.$route.params.id)
                }).then((response) => {
                    if (response.data.success) {
                        this.$message({
                            type: 'success',
                            message: "课程发布成功"
                        })
                        this.$router.push({path:'/edu/course/list'})
                    } else {
                        this.$message({
                            type: 'error',
                            message: "课程发布失败"
                        })
                    }
                }).catch((response) => { // 失败
                    if (response === 'cancel') {
                        this.$message({
                            type: 'info',
                            message: '已取消发布'
                        })
                    } else {
                        this.$message({
                            type: 'error',
                            message: response.message
                        })
                    }
                })
            }
        }
    }
</script>

<style scoped>
  .ccInfo {
    background: #f5f5f5;
    padding: 20px;
    overflow: hidden;
    border: 1px dashed #DDD;
    margin-bottom: 40px;
    position: relative;
    font-family: KaiTi;
  }
  .ccInfo img {
    background: #d6d6d6;
    width: 500px;
    height: 278px;
    display: block;
    float: left;
    border: none;
  }
  .ccInfo .main {
    margin-left: 520px;
  }
  .ccInfo .main h2 {
    font-size: 28px;
    margin-bottom: 30px;
    line-height: 1;
    font-weight: normal;
  }
  .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
  }
  .ccInfo .main p {
    margin-bottom: 10px;
    word-wrap: break-word;
    line-height: 24px;
    max-height: 48px;
    overflow: hidden;
  }
  .ccInfo .main h3 {
    left: 540px;
    bottom: 20px;
    line-height: 1;
    font-size: 28px;
    color: #d32f24;
    font-weight: normal;
    position: absolute;
  }
</style>
